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feat(modem): Added support for at_raw() command

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at_raw() sends raw string and supports custom pass/fail phrases for the
API to return OK/FAIL. It also returns raw, unprocessed string as
output.
This allows sending custom requests, such as:
* dce->at_raw("", resp, "RDY", "...", 20000) -- waiting for reset
* esp_modem_at_raw(dce, "+++", resp, "DISCONNECTED", "ERROR", 5000) --
exits PPP mode

Closes https://github.com/espressif/esp-protocols/issues/471
Partially addresses https://github.com/espressif/esp-protocols/issues/468
This commit is contained in:
David Cermak
2024-01-08 19:00:20 +01:00
parent 5ab699d6f4
commit ae38110d84
3 changed files with 45 additions and 3 deletions
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18
components/esp_modem/src/esp_modem_command_library.cpp
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@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2021-2023 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2021-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -394,6 +394,22 @@ command_result at(CommandableIf *t, const std::string &cmd, std::string &out, in
return generic_get_string(t, at_command, out, timeout);
}
command_result at_raw(CommandableIf *t, const std::string &cmd, std::string &out, const std::string &pass, const std::string &fail, int timeout = 500)
{
ESP_LOGV(TAG, "%s", __func__ );
return t->command(cmd, [&](uint8_t *data, size_t len) {
out.assign(reinterpret_cast<char *>(data), len);
if (out.find(pass) != std::string::npos) {
return command_result::OK;
} else if (out.find(fail) != std::string::npos) {
return command_result::FAIL;
}
return command_result::TIMEOUT;
}, timeout);
}
command_result get_signal_quality(CommandableIf *t, int &rssi, int &ber)
{
ESP_LOGV(TAG, "%s", __func__ );